(Caprimulgus carolinensis) nocturnal bird of the nightjar family Caprimulgidae, similar to the whip-poor-will, found in the southeastern United States near swamps, rocky uplands, and pine woods. It migrates to the West Indies, Central America, and northwestern South America. voice: Call a loud "Chuck-will's-widow," with the first "chuck" being quiet and inaudible at a distance. about this bird